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………provide the major force for the movement of water molecules.
a) translocation           
b) bulk flow
c) transpiration         
d) root pressure

c

Which bonds are responsible for the cohesion water molecules?
a) ionic                                   
b) hydrogen
c) non polar covalent
d) polar covalent

b

In a sugar sink, such as taproot, sugar is converted into…….
a) fatty acid                
b) proteins
c) glycogen                 
d) starch

d

Plants are able to detect photoperiod changes by the……….
a) alternation the two forms of phytochrome        
b) settling of amyloplasts
c) direction of the light source                       
d) movement of potassium ions 

a

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